Heating-type ultrasonic humidifier

Abstract

A humidifier reduces the noise generated by the dropping of water droplets and can also vent bacteria-destroyed mist. An auxiliary water tank is installed under a water supply tank for receiving the water supplied from the water supply tank. An ultrasonic humidifying vessel is connected to the auxiliary water tank. A heating-type humidifying apparatus is provided at the upper portion of the ultrasonic humidifying vessel. A heating coil is wound around a driving pulley of the heating-type humidifying apparatus. First and second idle pulleys are immersed in the water contained in the ultrasonic humidifying vessel. A humidifying endless belt trains around the driving, the first idle, and the second idle pulleys. The portion of the humidifying endless belt around the driving pulley is heated by the heating coil, thereby generating steam, and the portions of the humidifying endless belt around the first and second idle pulleys are immersed in the water contained in the ultrasonic humidifying vessel, so that it absorbs water. The humidifying endless belt receives the water droplets from a mist conduit tube, reducing the noise caused by the dropping of the water droplets. The air fed is introduced into the ultrasonic humidifying vessel. The bacteria in the mist are destroyed when the mist meets the hot steam generated by the heating coil or passes by the heating coil. The mist is mixed together with the steam in the mist conduit tube, and is vented.

What is claimed is: 
     
       1. A heating-type ultrasonic humidifier comprising: a main body wherein a water supply tank is separably fixed to the upper surface thereof at a first side thereof and a duct is formed along a side wall at a second side opposite to the first side;   an auxiliary water tank installed in said main body under a bottom surface of the water supply tank, for receiving a water from the water supply tank, wherein a conduit extends from the bottom surface of the auxiliary water tank;   an ultrasonic humidifying vessel connected to said auxiliary water tank through the conduit, for receiving the water from said auxiliary water tank, wherein an ultrasonic vibrator is provided at a lower portion thereof;   a mist conduit tube formed at an upper portion of said ultrasonic humidifying vessel in said main body;   a heating-type humidifying means provided at a lower portion of said mist conduit tube, for receiving the droplets from said mist conduit tube to reduce the noise generated by the dropping of the droplets, and for humidifying by heating the water drawn from the surface of the water in said ultrasonic humidifying vessel; and   a motor blower provided in said main body, for feeding air to said mist conduit tube through the duct.   
     
     
       2. A heating-type ultrasonic humidifier according to claim 1, wherein said heating-type humidifying means comprises a first pulley provided in said mist conduit tube, around which a heating coil is wound, second and third pulleys provided in the water contained in said ultrasonic humidifying vessel, parallel to the first pulley, and separated from each other by a predetermined distance, a humidifying endless training around the first, second, and third pulleys. 
     
     
       3. A heating-type ultrasonic humidifier according to claim 2, wherein the first pulley is positioned in said mist conduit tube at a lower portion of said mist conduit tube. 
     
     
       4. A heating-type ultrasonic humidifier according to claim 2, wherein the first pulley is a driving pulley for driving the humidifying endless belt, and the heating-type ultrasonic humidifier further comprises a driving means for driving the driving pulley. 
     
     
       5. A heating-type ultrasonic humidifier according to claim 2, wherein the humidifying endless belt is comprised of a hygroscopic fabric. 
     
     
       6. A heating-type ultrasonic humidifier according to claim 2, wherein said mist conduit tube has a rectangular-shaped longitudinal section and a tapered cross section where its lower end is narrower than its upper end. 
     
     
       7. A heating-type ultrasonic humidifier according to claim 2, wherein the distance between the second pulley and the third pulley is equal to or greater than a width between ends of said mist conduit tube. 
     
     
       8. A heating-type ultrasonic humidifier according to claim 1, said heating-type ultrasonic humidifier further comprising a nozzle rotatably mounted at the upper end of said mist conduit tube so that the direction of the mist vented from said mist conduit tube can be regulated. 
     
     
       9. A heating-type ultrasonic humidifier according to claim 1, wherein said motor blower is mounted on a bottom of said main body under said ultrasonic humidifying vessel. 
     
     
       10. A heating-type ultrasonic humidifier comprising: a main body wherein a water supply tank is separably fixed to the upper surface thereof at a first side thereof and a duct is formed along a side wall at a second side opposite to the first side;   an auxiliary water tank installed in said main body under the water supply tank, for receiving the water from the water supply tank, wherein a conduit is formed at a lower end of said auxiliary water tank;   an ultrasonic humidifying vessel connected to said auxiliary water tank through the conduit, for receiving a water from said auxiliary water tank, wherein an ultrasonic vibrator is provided at a lower portion thereof;   a mist conduit tube formed at an upper portion of said ultrasonic humidifying vessel in said main body;   a heating-type humidifying means provided at a lower portion of said mist conduit tube, which comprises a driving pulley in said mist conduit tube, around which a heating coil is wound, first and second pulleys in the water contained in said ultrasonic humidifying vessel, parallel to the driving pulley and separated from each other by a predetermined distance, and a humidifying endless belt training around the driving pulley, the first idle pulley, and the second idle pulley, for receiving the droplets from said mist conduit tube to reduce the noise generated by the dropping of the droplets, and for humidifying by heating the water drawn from the surface of the water in said ultrasonic humidifying vessel;   a drive means for driving the driving pulley; and   a motor blower provided in said main body, for feeding air to said mist conduit tube through the duct.   
     
     
       11. A heating-type ultrasonic humidifier according to claim 10, wherein the driving pulley is positioned in said mist conduit tube at a lower portion of said mist conduit tube. 
     
     
       12. A heating-type ultrasonic humidifier according to claim 10, wherein the humidifying endless belt comprises a hygroscopic fabric. 
     
     
       13. A heating-type ultrasonic humidifier according to claim 10, wherein said mist conduit tube has a rectangular-shaped longitudinal section and a tapered cross section where its lower end is narrower than its upper end. 
     
     
       14. A heating-type ultrasonic humidifier according to claim 10, wherein the distance between the first idle pulley and the second idle pulley is equal to or greater than the width of the bottom ends of said mist conduit tube. 
     
     
       15. A heating-type ultrasonic humidifier according to claim 10, the heating-type ultrasonic humidifier further comprising a nozzle rotatably mounted at the upper end of said mist conduit tube so that the direction of the mist vented from said mist conduit tube can be regulated. 
     
     
       16. A heating-type ultrasonic humidifier according to claim 10, wherein said motor blower is mounted on the bottom surface of said main body under said ultrasonic humidifying vessel.